Picking the wrong image format is one of the most common (and most fixable) mistakes people make online — it leads to slow-loading pages, blurry logos, or unnecessarily huge files. Here's how to choose correctly, every time.

Quick Answer

  • Photos → JPG
  • Logos, icons, screenshots with text, or anything needing transparency → PNG
  • Anything going on a website where load speed matters → WebP

JPG / JPEG

JPG uses "lossy" compression — it throws away some image detail to achieve much smaller file sizes. This works great for photographs, where the human eye doesn't notice small color shifts, but it's a poor choice for text or sharp edges, which can come out looking smudged.

Use JPG for: photos, product images, backgrounds, anything with lots of color detail and no transparency needed.

PNG

PNG uses "lossless" compression — nothing is thrown away, so quality stays perfect, but file sizes are larger, especially for photos. PNG also supports transparency (an alpha channel), which JPG cannot do.

Use PNG for: logos, icons, screenshots, diagrams, text-heavy images, and anything that needs a transparent background.

WebP

WebP is a modern format built specifically for the web. It supports both lossy and lossless compression, handles transparency like PNG, and typically produces files 25–35% smaller than an equivalent JPG or PNG at the same visual quality. Nearly every modern browser supports it.

Use WebP for: any image published on a website, where page load speed directly affects user experience and SEO.

Side-by-Side Comparison

  • Best for photos: WebP (best), JPG (safe default)
  • Best for transparency: PNG or WebP
  • Best for text/screenshots: PNG
  • Smallest file size: WebP, in almost every case
  • Widest compatibility (old software, print): JPG or PNG
Tip: When in doubt for a photo, use JPG at 80–85% quality — it's the sweet spot between file size and visible quality for most images.

Converting Between Formats

Switching formats takes seconds with the right tool:

  • Need a JPG as a PNG (for transparency or lossless editing)? Use our free JPG to PNG Converter.
  • Need to resize an image before uploading it? Try the Image Resizer.
  • Need to pull an image out of a PDF page? Use PDF to JPG.
Ready to convert an image? Try the free JPG to PNG tool — no sign-up required.